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*The Angi rating for Radon Detection And Reduction companies in Farmingville, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

*The HomeAdvisor rating for Radon Detection And Reduction companies in Farmingville, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

Last update on March 03, 2026

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Avatar for Phase 1 Restoration Inc.
Phase 1 Restoration Inc.
4.7(
21
)

Serving Farmingville, NY and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"The rep came out and reviewed the areas of concern.  He gave me an estimate on the spot. The next day I decided to go with JBH and the project was scheduled for the following week.  The workers arrived within the scheduled time period and they were very pleasant to work with. They were responsive, efficient and neat. The job was completed in no time.
"
Additional Photos
Response time2 days
2 neighbors recently requested a quote
Recommended by89%of homeowners
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Avatar for Landon Home Inspections, LLC - Home Facebook
Landon Home Inspections, LLC - Home Facebook
4.8(
4
)

Serving Farmingville, NY and surrounding areas

In business since 2014

Free estimates

"They were very a professional, on time, reliable vendor. We have used several contractors in the past, and he was always quick to respond back to us with whatever we needing - great customer service!"
Response time3 hrs
Response rate93%
Recommended by100%of homeowners
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Avatar for Anthi Environmental Corp.
Anthi Environmental Corp.
5.0(
9
)

Serving Farmingville, NY and surrounding areas

Emergency services offered

"Very Professional, thorough and cost effective. Peter fulfilled his promise of removing the areas that tested lead positive at a GREAT price, was very prompt , professional and all in a timely manner. Would definitely use again. Highly recommended... Honest business."
Lead removal under HPD violations
Mold testing and remediation
Mold remediation
Lead removal under HPD violations
Mold testing and remediation

+59

Response time40 mins
Recommended by100%of homeowners
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Avatar for Northeastern Environmental Testing, Inc.
Northeastern Environmental Testing, Inc.
5.0(
2
)

Serving Farmingville, NY and surrounding areas

In business since 2018

Free estimates

Emergency services offered

Northeastern Environmental Testing specializes in environmental consultation & testing. Our expert team will treat your home as if it was our own. Navigating the remediation plan together until your home is good as new. We offer 24/7 service please call to set up your inspection today!

Response time6 hrs
Response rate100%
Recommended by100%of homeowners
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Full House Home Inspections
3.8(
4
)

Serving Farmingville, NY and surrounding areas

In business since 2004

Free estimates

Emergency services offered

"We decided to fix our 27 yr old deck by replacing many of the boards, having it power washed, sanded and stained (2 coats). In addition we had them take down the existing lattice work and put up new lattice which they framed out beautifully. Harry's two men (Rob and Rick) were excellent. We are very happy with the quality of their work and would recommend them highly."
Window inspection
Front
Inspection
2 sided fireplace
stairs inspection

+2

Recommended by100%of homeowners
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Radon Detection and Reduction questions, answered by experts

The natural breakdown of uranium in soil, rock, and water can cause radon to appear in a home. The gas seeps into homes through cracks in foundations, walls, or floors, as well as through gaps around pipes or construction joints. Radon levels are influenced by soil composition, building materials, and ventilation. Poorly sealed or airtight homes can trap radon, allowing it to accumulate.

The soil beneath your house is most likely what’s causing an increased level of radon. This is because soil holds radioactivity for a long time and it’s also what most buildings are built on. Another common source of radon is water from a source that hasn’t been through periodic radon tests, such as well water. Over time, the radon from the soil can inhabit other parts of your house like the foundation or plumbing.

The lifespan of a radon mitigation system depends on the type of system and its maintenance. With proper care, a system can last for many decades. Passive systems tend to last longer as they have fewer components that require replacement. Active systems, which have more moving parts like fans, generally have a shorter lifespan. For instance, water filtration devices and active pressurization systems require more frequent maintenance. While the system as a whole is durable, the radon fan in an active system typically has a lifespan of 5 to 10 years and will need to be replaced. As long as the fan is working, the mitigation system should function correctly.

Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.

Long-term exposure increases lung cancer risks. Prolonged homestay individuals and smokers encounter heightened vulnerability and exposure concerns.

The Farmingville, NY homeowners’ guide to radon detection and reduction services

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